Unlocks like rocket booster effects on your feet and knees would be really cool. Kind of like an homage to Vanquish. Also maybe those effects could have different colors and such or even be stuff like electricity. Doesn't GMOD come with booster effects like this built in?

Actually rocket boosters in general would be funny to have for the athletic class when their style skill activates, or maybe old school nikes. And maybe brass knuckles or a fist-chain for the bouncer class. Hey you may be on to something here. What would the other classes have for their cosmetics, that show their gameplay style? I'm thinking like a big scope or something for the marksman, and maybe a big gold watch for the reflexes guy, or ninja wraps haha.